Client Keeps Crashing

Okay so this has happened 3 times now and it's starting to become incredibly annoying as fuck and the Riot people wont help me fix it. So basically this happens like every 10-20 games or so and I get through the character select perfectly fine but when the loading screen with all the champions on it appears like i get a popup that says something like "We have found a problem within your game. Please send us a report of what you were doing before this error appeared." and then it proceeds to kick me out of the game and attempt to "fix my client" and then it takes AT LEAST 10 minutes to do this and whenever i do get back into the game after its fixed i get Leaverbusted and am placed on the lower priority queue for 5 games. THIS IS COMPLETE BLLSHT like i literally have no control over this whatsoever and it is 100% unfair when I get punished for a problem that is clearly on Riot's end. Now I didnt type this to rant about it Im just curious as to if this has happened to anyone else and how you can completely fix this problem. Any responses help and thank you in advance!